Boss on nozzle bores of a drill bit



FIG. 1 is a bottom view diagram of a first embodiment of a boss on nozzle bores of a drill bit.

FIG. 2 is an elevation diagram of the boss on nozzle bores of a drill bit of FIG. 1.

FIG. 3 is a first side view diagram of the boss on nozzle bores of a drill bit of FIG. 1.

FIG. 4 is a second side view diagram the boss on nozzle bores of a drill bit of FIG. 1.

FIG. 5 is a third side view diagram the boss on nozzle bores of a drill bit of FIG. 1.

FIG. 6 is a fourth side view diagram the boss on nozzle bores of a drill bit of FIG. 1.

FIG. 7 is a bottom view diagram of a second embodiment a boss on nozzle bores of a drill bit.

FIG. 8 is an elevation diagram the boss on nozzle bores of a drill bit of FIG. 7.

FIG. 9 is a first side view diagram the boss on nozzle bores of a drill bit of FIG. 7.

FIG. 10 is a second side view diagram the boss on nozzle bores of a drill bit of FIG. 7.

FIG. 11 is a third side view diagram the boss on nozzle bores of a drill bit of FIG. 7.

FIG. 12 is a fourth side view diagram the boss on nozzle bores of a drill bit of FIG. 7.

FIG. 13 is a bottom view diagram of a third embodiment a boss on nozzle bores of a drill bit.

FIG. 14 is an elevation diagram the boss on nozzle bores of a drill bit of FIG. 13.

FIG. 15 is a first side view diagram the boss on nozzle bores of a drill bit of FIG. 13.

FIG. 16 is a second side view diagram the boss on nozzle bores of a drill bit of FIG. 13.

FIG. 17 is a third side view diagram the boss on nozzle bores of a drill bit of FIG. 13; and,

FIG. 18 is a fourth side view diagram the boss on nozzle bores of a drill bit of FIG. 13.

The broken lines show portions of a boss on nozzle bores of a drill bit which form no part of the claimed design. 

CLAIM I claim the ornamental design for a boss on nozzle bores of a drill bit, as shown and described. 